Operating Systems management techniques: Difference between revisions
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| policies || Given a particular task, policy refers to what needs to be done (i.e. activities to perform) and mechanism refers to how to do it (i.e. implementation to enforce policy).<ref>http://www.8bitavenue.com/2016/12/policy-vs-mechanism-in-operating-system/</ref>. Put another way, the separation of mechanism and policy is a design principle in computer science. It states that mechanisms (those parts of a system implementation that control the authorization of operations and the allocation of resources) should not dictate (or overly restrict) the policies according to which decisions are made about which operations to authorize, and which resources to allocate.<ref>https://en.wikipedia.org/wiki/Separation_of_mechanism_and_policy</ref> | | policies || Given a particular task, policy refers to what needs to be done (i.e. activities to perform) and mechanism refers to how to do it (i.e. implementation to enforce policy).<ref>http://www.8bitavenue.com/2016/12/policy-vs-mechanism-in-operating-system/</ref>. Put another way, the separation of mechanism and policy is a design principle in computer science. It states that mechanisms (those parts of a system implementation that control the authorization of operations and the allocation of resources) should not dictate (or overly restrict) the policies according to which decisions are made about which operations to authorize, and which resources to allocate.<ref>https://en.wikipedia.org/wiki/Separation_of_mechanism_and_policy</ref> | ||
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| multitasking || | | multitasking || In computing, multitasking is a concept of performing multiple tasks (also known as processes) over a certain period of time by executing them concurrently.<ref>https://en.wikipedia.org/wiki/Computer_multitasking</ref> | ||
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| virtual memory || foo | | virtual memory || foo | ||
Revision as of 22:47, 6 December 2017
Resource Management[1]
An operating system must
OS resource management techniques[edit]
Resource management is the dynamic allocation and de-allocation by an operating system of processor cores, memory pages, and various types of bandwidth to computations that compete for those resources. The objective is to allocate resources so as to optimize responsiveness subject to the finite resources available. [2]
| Technique | Description |
|---|---|
| scheduling | Scheduling is the method by which work is assigned to resources that complete the work.[3]. There are many different scheduling strategies. The main purposes of scheduling algorithms are to minimize resource starvation and to ensure fairness amongst the parties utilizing the resources[4] |
| policies | Given a particular task, policy refers to what needs to be done (i.e. activities to perform) and mechanism refers to how to do it (i.e. implementation to enforce policy).[5]. Put another way, the separation of mechanism and policy is a design principle in computer science. It states that mechanisms (those parts of a system implementation that control the authorization of operations and the allocation of resources) should not dictate (or overly restrict) the policies according to which decisions are made about which operations to authorize, and which resources to allocate.[6] |
| multitasking | In computing, multitasking is a concept of performing multiple tasks (also known as processes) over a certain period of time by executing them concurrently.[7] |
| virtual memory | foo |
| paging | foo |
| interrupt | foo |
| polling | foo |
Standards[edit]
- Outline OS resource management techniques: scheduling, policies, multitasking, virtual memory, paging, interrupt, polling.
References[edit]
- ↑ http://www.flaticon.com/
- ↑ https://www.bscmsrc.eu/media/events/barcelona-multicore-workshop-2010/burton-smith-abstract
- ↑ https://en.wikipedia.org/wiki/Scheduling_(computing)
- ↑ https://en.wikipedia.org/wiki/Scheduling_(computing)#Scheduling_disciplines
- ↑ http://www.8bitavenue.com/2016/12/policy-vs-mechanism-in-operating-system/
- ↑ https://en.wikipedia.org/wiki/Separation_of_mechanism_and_policy
- ↑ https://en.wikipedia.org/wiki/Computer_multitasking